```
[xxxx]$ python3.10
Python 3.10.2 (main, Feb  2 2022, 06:19:27) [Clang 13.0.0 (clang-1300.0.29.3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
>>> cv2.__version__
'4.5.5'
>>> cv2.VideoCapture(0)

2022-04-18 19:59:57.891 Python[2550:31947] DALPlugInMain PlugInMain
2022-04-18 19:59:57.891 Python[2550:31947] exceedshare-mac-virtualcam(DAL): PlugInMain version= 0.2.1
2022-04-18 19:59:57.891 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_QueryInterface
2022-04-18 19:59:57.891 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_Release sRefCount now = 0
2022-04-18 19:59:57.891 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_InitializeWithObjectID self=0x11ea15910
2022-04-18 19:59:57.891 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIOObjectPropertyListenerAdded self=0x11ea15910 data(int)=1684629094
2022-04-18 19:59:57.891 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIOObjectPropertyListenerAdded self=0x11ea15910 data(int)=1869180523
2022-04-18 19:59:57.892 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIOObjectPropertyListenerAdded self=0x11ea15910 data(int)=1885762592
2022-04-18 19:59:59.081 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIOObjectPropertyListenerAdded self=0x11ea15910 data(int)=1818850926
2022-04-18 19:59:59.081 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIOObjectPropertyListenerAdded self=0x11ea15910 data(int)=1869180523
2022-04-18 19:59:59.081 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIOObjectPropertyListenerAdded self=0x11ea15910 data(int)=1937009955
2022-04-18 19:59:59.081 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIOObjectPropertyListenerAdded self=0x11ea15910 data(int)=1886156132
2022-04-18 19:59:59.081 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIOObjectPropertyListenerAdded self=0x11ea15910 data(int)=1935833461
2022-04-18 19:59:59.081 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALStream(34) kCMIOObjectPropertyListenerAdded self=0x11ea15910 data(int)=1885762592
2022-04-18 19:59:59.081 Python[2550:31947] exceedshare-mac-virtualcam(DAL): getFormatDescription
2022-04-18 19:59:59.082 Python[2550:31947] exceedshare-mac-virtualcam(DAL): FormatDescription = <CMVideoFormatDescription 0x7fc17c791f40 [0x7ff855989d80]> {
	mediaType:'vide'
	mediaSubType:'2vuy'
	mediaSpecific: {
		codecType: '2vuy'		dimensions: 1920 x 1080
	}
	extensions: {(null)}
}
2022-04-18 19:59:59.082 Python[2550:31947] exceedshare-mac-virtualcam(DAL): getFormatDescription
2022-04-18 19:59:59.082 Python[2550:31947] exceedshare-mac-virtualcam(DAL): FormatDescription = <CMVideoFormatDescription 0x7fc17c7926f0 [0x7ff855989d80]> {
	mediaType:'vide'
	mediaSubType:'2vuy'
	mediaSpecific: {
		codecType: '2vuy'		dimensions: 1920 x 1080
	}
	extensions: {(null)}
}
2022-04-18 19:59:59.102 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyHogMode self=0x11ea15910 settable=0
2022-04-18 19:59:59.102 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyExcludeNonDALAccess self=0x11ea15910 settable=1
2022-04-18 19:59:59.102 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyExcludeNonDALAccess self=0x11ea15910 settable=1
2022-04-18 19:59:59.102 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIODevicePropertyExcludeNonDALAccess self=0x11ea15910 data(int)=1
2022-04-18 19:59:59.113 Python[2550:31947] exceedshare-mac-virtualcam(DAL): getFormatDescription
2022-04-18 19:59:59.113 Python[2550:31947] exceedshare-mac-virtualcam(DAL): FormatDescription = <CMVideoFormatDescription 0x7fc17c795c60 [0x7ff855989d80]> {
	mediaType:'vide'
	mediaSubType:'2vuy'
	mediaSpecific: {
		codecType: '2vuy'		dimensions: 1920 x 1080
	}
	extensions: {(null)}
}
2022-04-18 19:59:59.127 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.127 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.127 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.127 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 data(int)=2550
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALStream(34) kCMIOStreamPropertyFormatDescription self=0x11ea15910 settable=0
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 data(int)=-1
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 data(int)=2550
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALStream(34) kCMIOStreamPropertyFrameRate self=0x11ea15910 settable=0
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.128 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.129 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectIsPropertySettable DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 settable=1
2022-04-18 19:59:59.129 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIODevicePropertyDeviceMaster self=0x11ea15910 data(int)=-1
2022-04-18 19:59:59.130 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_ObjectSetPropertyData DALDevice(33) kCMIOObjectPropertyListenerAdded self=0x11ea15910 data(int)=1818850926
2022-04-18 19:59:59.131 Python[2550:31947] exceedshare-mac-virtualcam(DAL): getFormatDescription
2022-04-18 19:59:59.131 Python[2550:31947] exceedshare-mac-virtualcam(DAL): FormatDescription = <CMVideoFormatDescription 0x7fc17c7e3520 [0x7ff855989d80]> {
	mediaType:'vide'
	mediaSubType:'2vuy'
	mediaSpecific: {
		codecType: '2vuy'		dimensions: 1920 x 1080
	}
	extensions: {(null)}
}
2022-04-18 19:59:59.144 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_StreamCopyBufferQueue <DALStream: 0x7fc18c75f100> (id=34) self=0x11ea15910 queue=<CMSimpleQueue 0x7fc18c790060 retainCount: 2 allocator: 0x7ff855989d80
	capacity = 60
	count = 0
	readIndex = 0
	writeIndex = 0
	elements[readIndex..(writeIndex-1) %% (capacity+1)] = {
}
>
2022-04-18 19:59:59.144 Python[2550:31947] exceedshare-mac-virtualcam(DAL): HardwarePlugIn_DeviceStartStream self=0x11ea15910 device=33 stream=34
2022-04-18 19:59:59.145 Python[2550:31947] exceedshare-mac-virtualcam(DAL): -[DALPlugIn startStream]
2022-04-18 19:59:59.145 Python[2550:32034] exceedshare-mac-virtualcam(DAL): -[DALStream startServingDefaultFrames]
2022-04-18 19:59:59.145 Python[2550:32034] exceedshare-mac-virtualcam(DAL): Server is not available
<VideoCapture 0x109330030>
>>> 2022-04-18 19:59:59.893 Python[2550:32093] exceedshare-mac-virtualcam(DAL): Server is not available
2022-04-18 20:00:00.893 Python[2550:32093] 
```